Home / 79,423.02-109,623.60-49,190.22

Finding the Fourth Proportional to 79,423.02, 109,623.60 and 49,190.22

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Solution

The fourth proportional to 79,423.02, 109,623.60 and 49,190.22 is: 67,894.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,423.02 : 109,623.60 = 49,190.22 : x
  2. Step 2: Convert to fraction form
    79,423.02/109,623.60 = 49,190.22/x
  3. Step 3: Cross multiply
    79,423.02x = 109,623.60 × 49,190.22
  4. Step 4: Simplify right side
    79,423.02x = 5,392,409,001.19
  5. Step 5: Solve for x
    x = 5,392,409,001.19/79,423.02
  6. Step 6: Final answer
    x = 67,894.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.